[bug?] xm sysrq == Internal Server Error

[bug?] xm sysrq == Internal Server Error

[Christopher S. Aker]

Using stable (2.05) tools and kernel, dom0 is CentOS 4.

# xm sysrq mydomain s
Error: Internal Server Error

(sorry for the word-wrapping)
==> /var/log/xend-debug.log <==
{'key': 115}
Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/twisted/protocols/basic.py", line 229, in
dataReceived
    return self.rawDataReceived(data)
  File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 1015, in
rawDataReceived
    self.allContentReceived()
  File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 1006, in
allContentReceived
    req.requestReceived(command, path, version)
  File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 557, in
requestReceived
    self.process()
--- <exception caught here> ---
  File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 165, in process
    self.render(resrc)
  File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 172, in render
    body = resrc.render(self)
  File "/usr/lib/python2.3/site-packages/twisted/web/resource.py", line 201, in
render
    return m(request)
  File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 197, in render_POST
    return self.perform(req)
  File "/usr/lib/python/xen/xend/server/SrvBase.py", line 103, in perform
    return self._perform(op, op_method, req)
  File "/usr/lib/python/xen/xend/server/SrvBase.py", line 109, in _perform
    return self._perform_err(err, op, req)
  File "/usr/lib/python/xen/xend/server/SrvBase.py", line 107, in _perform
    val = op_method(op, req)
  File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 52, in op_shutdown
    val = fn(req.args, {'dom': self.dom.id})
  File "/usr/lib/python/xen/xend/Args.py", line 140, in __call__
    return self.call_with_form_args(self.fn, fargs, xargs=xargs)
  File "/usr/lib/python/xen/xend/Args.py", line 116, in call_with_form_args
    return fn(*params, **keys)
  File "/usr/lib/python/xen/xend/XendDomain.py", line 477, in domain_shutdown
    val = xend.domain_shutdown(dominfo.id, reason, key)
  File "/usr/lib/python/xen/xend/server/SrvDaemon.py", line 724, in domain_shutdown
    ctrl.shutdown(reason, key)
  File "/usr/lib/python/xen/xend/server/domain.py", line 52, in shutdown
    self.writeRequest(packMsg(msgtype, extra))
  File "/usr/lib/python/xen/xend/server/messages.py", line 274, in packMsg
    msg = xu.message(major, minor, msgid, args)
exceptions.TypeError: payload contains bad items

-Chris



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RE: [bug?] xm sysrq == Internal Server Error

[Ian Pratt]

> Using stable (2.05) tools and kernel, dom0 is CentOS 4.
> 
> # xm sysrq mydomain s
> Error: Internal Server Error

Does this happen every time, or only after xend has got in a bad state?

Ian


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Re: [bug?] xm sysrq == Internal Server Error

[Christopher S. Aker]

> > Using stable (2.05) tools and kernel, dom0 is CentOS 4.
> > 
> > # xm sysrq mydomain s
> > Error: Internal Server Error
> 
> Does this happen every time, or only after xend has got in a bad state?

Every time -- everything else is working great.

-Chris


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Re: [bug?] xm sysrq == Internal Server Error

[woody]

[-- Attachment #1: Type: text/plain, Size: 1299 bytes --]

I have this as well, it is consistent in that it fails on 2.6.10 and 
2.6.11 unstable builds.

woody
===========================

Christopher S. Aker wrote:

>>>Using stable (2.05) tools and kernel, dom0 is CentOS 4.
>>>
>>># xm sysrq mydomain s
>>>Error: Internal Server Error
>>>      
>>>
>>Does this happen every time, or only after xend has got in a bad state?
>>    
>>
>
>Every time -- everything else is working great.
>
>-Chris
>
>
>-------------------------------------------------------
>SF email is sponsored by - The IT Product Guide
>Read honest & candid reviews on hundreds of IT Products from real users.
>Discover which products truly live up to the hype. Start reading now.
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>Xen-devel@lists.sourceforge.net
>https://lists.sourceforge.net/lists/listinfo/xen-devel
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>  
>

-- 
Sincerely, Woody Marvel   LTC Open Source Projects   Beaverton, OR
tel: 503-578-3833/775-3833	email: marvel@us.ibm.com
=======================================================================
"The branch is not only ever near the stem, but ever receiving life and fruitfulness from it." -- C.H.Spurgeon
=======================================================================


[-- Attachment #2: Type: text/html, Size: 2177 bytes --]

Re: [bug?] xm sysrq == Internal Server Error

[Mark Williamson]

> Using stable (2.05) tools and kernel, dom0 is CentOS 4.
>
> # xm sysrq mydomain s
> Error: Internal Server Error

Is this fixed for you yet?  Searching my mail archives, I don't see evidence 
for / against it having been dealt with.

If not, let me know - at first glance, it doesn't look like a difficult fix.

Cheers,
Mark

> (sorry for the word-wrapping)
> ==> /var/log/xend-debug.log <==
> {'key': 115}
> Traceback (most recent call last):
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/basic.py", line
> 229, in dataReceived
>     return self.rawDataReceived(data)
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line
> 1015, in rawDataReceived
>     self.allContentReceived()
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line
> 1006, in allContentReceived
>     req.requestReceived(command, path, version)
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line
> 557, in requestReceived
>     self.process()
> --- <exception caught here> ---
>   File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 165,
> in process self.render(resrc)
>   File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 172,
> in render body = resrc.render(self)
>   File "/usr/lib/python2.3/site-packages/twisted/web/resource.py", line
> 201, in render
>     return m(request)
>   File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 197, in
> render_POST return self.perform(req)
>   File "/usr/lib/python/xen/xend/server/SrvBase.py", line 103, in perform
>     return self._perform(op, op_method, req)
>   File "/usr/lib/python/xen/xend/server/SrvBase.py", line 109, in _perform
>     return self._perform_err(err, op, req)
>   File "/usr/lib/python/xen/xend/server/SrvBase.py", line 107, in _perform
>     val = op_method(op, req)
>   File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 52, in
> op_shutdown val = fn(req.args, {'dom': self.dom.id})
>   File "/usr/lib/python/xen/xend/Args.py", line 140, in __call__
>     return self.call_with_form_args(self.fn, fargs, xargs=xargs)
>   File "/usr/lib/python/xen/xend/Args.py", line 116, in call_with_form_args
>     return fn(*params, **keys)
>   File "/usr/lib/python/xen/xend/XendDomain.py", line 477, in
> domain_shutdown val = xend.domain_shutdown(dominfo.id, reason, key)
>   File "/usr/lib/python/xen/xend/server/SrvDaemon.py", line 724, in
> domain_shutdown ctrl.shutdown(reason, key)
>   File "/usr/lib/python/xen/xend/server/domain.py", line 52, in shutdown
>     self.writeRequest(packMsg(msgtype, extra))
>   File "/usr/lib/python/xen/xend/server/messages.py", line 274, in packMsg
>     msg = xu.message(major, minor, msgid, args)
> exceptions.TypeError: payload contains bad items
>
> -Chris
>
>
>
> -------------------------------------------------------
> SF email is sponsored by - The IT Product Guide
> Read honest & candid reviews on hundreds of IT Products from real users.
> Discover which products truly live up to the hype. Start reading now.
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Re: [bug?] xm sysrq == Internal Server Error

[Christopher S. Aker]

> > Using stable (2.05) tools and kernel, dom0 is CentOS 4.
> >
> > # xm sysrq mydomain s
> > Error: Internal Server Error
> 
> Is this fixed for you yet?  Searching my mail archives, I don't see evidence 
> for / against it having been dealt with.
> 
> If not, let me know - at first glance, it doesn't look like a difficult fix.

No, not yet.  I'd be happy to test any patches.

-Chris

Re: [bug?] xm sysrq == Internal Server Error

[Mark Williamson]

[-- Attachment #1: Type: text/plain, Size: 479 bytes --]

Thanks for sending to the correct list, unlike me ;-)

> > Is this fixed for you yet?  Searching my mail archives, I don't see
> > evidence for / against it having been dealt with.
<snip>
> No, not yet.  I'd be happy to test any patches.

Great!

Please apply the attached patches (against 2.0-testing, should work with other 
2.0 releases) and rebuild / reinstall the tools.  The existing kernel / Xen 
should work OK with these.

Compile tested only, so YMMV ;-)

Cheers,
Mark

[-- Attachment #2: tools-sysrq.patch --]
[-- Type: text/x-diff, Size: 486 bytes --]

--- xen-2.0-testing.bk/tools/python/xen/lowlevel/xu/xu.c	2005-03-28 18:38:57.606242115 +0000
+++ xen-2.0-testing-sysrq.bk/tools/python/xen/lowlevel/xu/xu.c	2005-03-28 18:49:27.942757972 +0000
@@ -671,6 +671,9 @@
         P2C(mem_request_t, target, u32);
         P2C(mem_request_t, status, u32);
         break;
+    case TYPE(CMSG_SHUTDOWN, CMSG_SHUTDOWN_SYSRQ):
+        P2C(shutdown_sysrq_t, key, char);
+        break;
     }
 
     if ( dict_items_parsed != PyDict_Size(payload) )

[-- Attachment #3: xen-sysrq.patch --]
[-- Type: text/x-diff, Size: 578 bytes --]

--- xen-2.0-testing.bk/xen/include/public/io/domain_controller.h	2005-03-28 18:38:58.151183771 +0000
+++ xen-2.0-testing-sysrq.bk/xen/include/public/io/domain_controller.h	2005-03-28 18:43:29.308152888 +0000
@@ -545,6 +545,10 @@
                                     /* SHUTDOWN_suspend.                     */
 #define CMSG_SHUTDOWN_SYSRQ     3
 
+typedef struct {
+    char key;      /* 0: sysrq key */
+    char __pad[3]; /* 1: */
+} PACKED shutdown_sysrq_t; /* 4 bytes */
 
 /******************************************************************************
  * MEMORY CONTROLS

[-- Attachment #4: Type: text/plain, Size: 138 bytes --]

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Re: [bug?] xm sysrq == Internal Server Error

[Christopher S. Aker]

> Please apply the attached patches (against 2.0-testing, should work with other
> 2.0 releases) and rebuild / reinstall the tools.  The existing kernel / Xen
> should work OK with these.
>
> Compile tested only, so YMMV ;-)

Applied patches, deleted and re-installed tools, same result:

# xm sysrq domain3 s
Error: Internal Server Error

Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/twisted/protocols/basic.py", line 229, in
dataReceived
    return self.rawDataReceived(data)
  File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 1015, in
rawDataReceived
    self.allContentReceived()
  File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 1006, in
allContentReceived
    req.requestReceived(command, path, version)
  File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line 557, in
requestReceived
    self.process()
--- <exception caught here> ---
  File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 165, in process
    self.render(resrc)
  File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 172, in render
    body = resrc.render(self)
  File "/usr/lib/python2.3/site-packages/twisted/web/resource.py", line 201, in
render
    return m(request)
  File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 197, in render_POST
    return self.perform(req)
  File "/usr/lib/python/xen/xend/server/SrvBase.py", line 103, in perform
    return self._perform(op, op_method, req)
  File "/usr/lib/python/xen/xend/server/SrvBase.py", line 109, in _perform
    return self._perform_err(err, op, req)
  File "/usr/lib/python/xen/xend/server/SrvBase.py", line 107, in _perform
    val = op_method(op, req)
  File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 52, in op_shutdown
    val = fn(req.args, {'dom': self.dom.id})
  File "/usr/lib/python/xen/xend/Args.py", line 140, in __call__
    return self.call_with_form_args(self.fn, fargs, xargs=xargs)
  File "/usr/lib/python/xen/xend/Args.py", line 116, in call_with_form_args
    return fn(*params, **keys)
  File "/usr/lib/python/xen/xend/XendDomain.py", line 477, in domain_shutdown
    val = xend.domain_shutdown(dominfo.id, reason, key)
  File "/usr/lib/python/xen/xend/server/SrvDaemon.py", line 724, in domain_shutdown
    ctrl.shutdown(reason, key)
  File "/usr/lib/python/xen/xend/server/domain.py", line 52, in shutdown
    self.writeRequest(packMsg(msgtype, extra))
  File "/usr/lib/python/xen/xend/server/messages.py", line 274, in packMsg
    msg = xu.message(major, minor, msgid, args)
exceptions.TypeError: payload contains bad items

-Chris

Re: [bug?] xm sysrq == Internal Server Error

[Mark Williamson]

> Applied patches, deleted and re-installed tools, same result:
>
> # xm sysrq domain3 s
> Error: Internal Server Error

I think the Python build system must have done something weird on your system 
- I just tested the patches and they fix the problem for me, whereas without 
them I see the same error you are getting.

Can you double check your tools install?  You may find it helps to blow away 
the current Xen Python libraries!  I have occasionally had issues with the 
Python's build / install system before.

Cheers,
Mark

> Traceback (most recent call last):
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/basic.py", line
> 229, in dataReceived
>     return self.rawDataReceived(data)
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line
> 1015, in rawDataReceived
>     self.allContentReceived()
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line
> 1006, in allContentReceived
>     req.requestReceived(command, path, version)
>   File "/usr/lib/python2.3/site-packages/twisted/protocols/http.py", line
> 557, in requestReceived
>     self.process()
> --- <exception caught here> ---
>   File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 165,
> in process self.render(resrc)
>   File "/usr/lib/python2.3/site-packages/twisted/web/server.py", line 172,
> in render body = resrc.render(self)
>   File "/usr/lib/python2.3/site-packages/twisted/web/resource.py", line
> 201, in render
>     return m(request)
>   File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 197, in
> render_POST return self.perform(req)
>   File "/usr/lib/python/xen/xend/server/SrvBase.py", line 103, in perform
>     return self._perform(op, op_method, req)
>   File "/usr/lib/python/xen/xend/server/SrvBase.py", line 109, in _perform
>     return self._perform_err(err, op, req)
>   File "/usr/lib/python/xen/xend/server/SrvBase.py", line 107, in _perform
>     val = op_method(op, req)
>   File "/usr/lib/python/xen/xend/server/SrvDomain.py", line 52, in
> op_shutdown val = fn(req.args, {'dom': self.dom.id})
>   File "/usr/lib/python/xen/xend/Args.py", line 140, in __call__
>     return self.call_with_form_args(self.fn, fargs, xargs=xargs)
>   File "/usr/lib/python/xen/xend/Args.py", line 116, in call_with_form_args
>     return fn(*params, **keys)
>   File "/usr/lib/python/xen/xend/XendDomain.py", line 477, in
> domain_shutdown val = xend.domain_shutdown(dominfo.id, reason, key)
>   File "/usr/lib/python/xen/xend/server/SrvDaemon.py", line 724, in
> domain_shutdown ctrl.shutdown(reason, key)
>   File "/usr/lib/python/xen/xend/server/domain.py", line 52, in shutdown
>     self.writeRequest(packMsg(msgtype, extra))
>   File "/usr/lib/python/xen/xend/server/messages.py", line 274, in packMsg
>     msg = xu.message(major, minor, msgid, args)
> exceptions.TypeError: payload contains bad items
>
> -Chris

Re: [bug?] xm sysrq == Internal Server Error

[Christopher S. Aker]

> I think the Python build system must have done something weird on your system 
> - I just tested the patches and they fix the problem for me, whereas without 
> them I see the same error you are getting.
> 
> Can you double check your tools install?  You may find it helps to blow away 
> the current Xen Python libraries!  I have occasionally had issues with the 
> Python's build / install system before.

Yeah -- I did blow away /usr/lib/python/xen, but forgot to restart xend :/  

   # xm sysrq domain3 s

   xennode root # dmesg 
   SysRq : Emergency Sync
   Emergency Sync complete

Thanks!  It works now -- nice job :)

-Chris

Re: [bug?] xm sysrq == Internal Server Error

[Mark A. Williamson]

On Tuesday 29 March 2005 00:27, Christopher S. Aker wrote:
> > I think the Python build system must have done something weird on your
> > system - I just tested the patches and they fix the problem for me,
> > whereas without them I see the same error you are getting.
> >
> > Can you double check your tools install?  You may find it helps to blow
> > away the current Xen Python libraries!  I have occasionally had issues
> > with the Python's build / install system before.
>
> Yeah -- I did blow away /usr/lib/python/xen, but forgot to restart xend :/
>
>    # xm sysrq domain3 s
>
>    xennode root # dmesg
>    SysRq : Emergency Sync
>    Emergency Sync complete
>
> Thanks!  It works now -- nice job :)

Wicked!  Thanks for testing it out.  I'll get a version of this fix pushed 
into the testing repository presently.

Cheers,
Mark

Re: [bug?] xm sysrq == Internal Server Error

[woody]

[-- Attachment #1.1: Type: text/plain, Size: 1328 bytes --]

Mark,

Thanks, if these patches are in 2.0 and 2.0-testing, will they be in 
xen-unstable?

wm
============

Christopher S. Aker wrote:

>>I think the Python build system must have done something weird on your system 
>>- I just tested the patches and they fix the problem for me, whereas without 
>>them I see the same error you are getting.
>>
>>Can you double check your tools install?  You may find it helps to blow away 
>>the current Xen Python libraries!  I have occasionally had issues with the 
>>Python's build / install system before.
>>    
>>
>
>Yeah -- I did blow away /usr/lib/python/xen, but forgot to restart xend :/  
>
>   # xm sysrq domain3 s
>
>   xennode root # dmesg 
>   SysRq : Emergency Sync
>   Emergency Sync complete
>
>Thanks!  It works now -- nice job :)
>
>-Chris
>
>_______________________________________________
>Xen-devel mailing list
>Xen-devel@lists.xensource.com
>http://lists.xensource.com/xen-devel
>
>  
>

-- 
Sincerely, Woody Marvel   LTC Open Source Projects   Beaverton, OR
tel: 503-578-3833/775-3833	email: marvel@us.ibm.com
=======================================================================
"The branch is not only ever near the stem, but ever receiving life and fruitfulness from it." -- C.H.Spurgeon
=======================================================================


[-- Attachment #1.2: Type: text/html, Size: 2015 bytes --]

[-- Attachment #2: Type: text/plain, Size: 138 bytes --]

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Re: [bug?] xm sysrq == Internal Server Error

[Mark A. Williamson]

Yes, fixes that go into -testing get pulled into -unstable too.  I've never 
had to deal with this but I think bitkeeper takes away some of the pain 
involved in doing this.

Cheers
Mark

On Tuesday 29 March 2005 01:03, woody wrote:
> Mark,
>
> Thanks, if these patches are in 2.0 and 2.0-testing, will they be in
> xen-unstable?
>
> wm
> ============
>
> Christopher S. Aker wrote:
> >>I think the Python build system must have done something weird on your
> >> system - I just tested the patches and they fix the problem for me,
> >> whereas without them I see the same error you are getting.
> >>
> >>Can you double check your tools install?  You may find it helps to blow
> >> away the current Xen Python libraries!  I have occasionally had issues
> >> with the Python's build / install system before.
> >
> >Yeah -- I did blow away /usr/lib/python/xen, but forgot to restart xend :/
> >
> >   # xm sysrq domain3 s
> >
> >   xennode root # dmesg
> >   SysRq : Emergency Sync
> >   Emergency Sync complete
> >
> >Thanks!  It works now -- nice job :)
> >
> >-Chris
> >
> >_______________________________________________
> >Xen-devel mailing list
> >Xen-devel@lists.xensource.com
> >http://lists.xensource.com/xen-devel